北京 – China’s two most widely used COVID-19 vaccines, developed by Sinovac and Sinopharm, were shown to be effective against the Delta variant of the coronavirus, a study based on real-world data in the country showed on Tuesday. The two vaccines were 52% effective against Delta infection and 60% for symptomatic disease, researchers wrote in a peer-reviewed paper. The study …

  Delta 变种症状相似 Delta 毒株确实与原始新冠病毒毒株有相似的症状，但也有一些重要的区别. 迄今为止, 味觉和嗅觉丧失并不是 Delta 变种的常见症状. 与 Delta 相关的常见症状是: • 喉咙痛 • 流鼻涕 • 发烧 • 发烧时头痛 …